Fitting for electrical conduits.



K. SIXMA.

FITTING FOR ELECTRICAL OONDUITS.

APPLICATION FILED SEPT. s. 1913 1 ,108,259, Patented Aug". 25, 19M

5] wue ntoz KLAAS SIXMA, 0F BROOKLYN, NEW ,YORK.

FITTING FOR ELECTRICAL CONDUITS.

Specification of Letters Patent.

Patented Augy25, 1914.

Application tiled September 3, 1913. Serial No. 787,8 10.

To all 'w/iom it may concern Be it known that I, KLAAs Srxnm, a subject of theQueen of the Netherlands, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Fittings for Electrical Conduits, of which the following is a speeitieation.

This invention relates substantially to fittings for eleetrieal conduits sueh as used in wiring a building for electrieity, or for tappine a street main.

I'leretofore these fittings have been made in two halves, with extending lugs and bolted together with screws or bolts, through these lugs. 1

The object of my invention is to provide a. titling which ean easily be put together and likewise taken apart in ease of repairs.

Another objeet of my invention is to provide a fitting of this eharaeter with outwardly extending tapering nipples which are held together with a taperinp loelc nut.

Still another object of my invention is to provide a fitting that can be used as a substitute for a pull-box as well as a conneetor for open wiring.

'lhese fittings can be made into any desired shape and size, sueh as Ts, erosses,.

elbows, eouplings or any other shape as the trade may require.

The invention c nsists of n vel features and parts, and r-oinbinations of saint. hi h will be more fully deseribed hereinafter and then pointed out in the elai ms.

A pravtiral (anbodinu-nt. of my invention is represmlttil, in the areon!panying drawings, l'ornling part of (his speriiiration, in \vhirli similar eharaeters of reference indi- (ate eorresponilin i parts in all the views.

Figurel is an elevation partly broken away and shown in serlion, of a T of my preferred eoiistruvtion of a fitting. Fig. 2 is an end \'i('\\ oi same, partly broken away. Fig. 3 is an elevation ol' a. coupling Whirl: ran be used as a pull box. with insulating material held in position for outside wiring. Fig. l is an eimz-rtion of an elbow showing l\'ll H'l\ outs also u ed as a pullbo.\. Fig. 5 is a fragmentary serti nal elevation 01" a modified l' rin ol' the r nplin".

'l'he titling \vhii'b in lig, l is shown as a redueing T is made of any suitable unl terial. sueh as \".'i. t or pres d Hl(l2li. or fiber and is made in two halves lt) -ll, Wililflt are made idenlival with (:itli other.

and lock nuts 16 are screwed thereon which have insidetapering portions 1 7, which eo-actwith the tapered nipple '13 of the body sections 10-11. Over the ends of the loricated conduits 1415 is screwed a bush I ing 18 having at its outer end an annular rounded'rim 19, which serves as a stop, for the conduits .1A-15. An angular flange 20 has a shoulder 21 which eo-acts with shoulder 1'2 of the main portions 1011. heir loek nuts 10-lt6" are screwed back to the right and left, see Fig. 1' and bushings 18- 18 are screwed on the ends of the conduit, the fitting members 10-11 may now he slipp d over tlie itirieatetl conduit 14-153 and the bushings 18-18 will bear against the inside shoulder 12 of the main portions 10--l1, and are held there by hand until the loek nuts 1G1(3 are screwed against the tapering nipples 13-13". It will now be seen that the look nuts 1(3-1(i with their tapering portions 17-47 will force the tapering nipples l l lfi of the main portion of the fittimg m together. thereby holding said fitting, secure and it will be impossible to jar them loose. 'lhese fittings may be provided with theusuat knock outs .23 shown best in Fig. 4-. When a eonnertion for open wiring is desired these knockouts may he removed and insulating bushings 31 inserted. and held in position with a spring 24 now in common use.

The modified form shown in Fig. 5 is similar in eonstruetion as shown in Fig. 1, with this diiierenee, howevbr. the members l()--il do not bear on the top of the thread of the conduits l b-l5 as is shown in Fig. 1 but. on'top of the busl'iingproper.

in Fig. 3 i have shown an insulated plate 2:? with a groove 26 into whieh the members to ll tit. This plate or insulator may be provided with any required number OfdlOlfiS ii for the rereption of wires to be used f r open wiring.

I elaim l. A v ndnit fitting of the kind described, romprising a sectional body provided with a tap red tubular nipple. a threaded Conduit titled in the nipple. a bushin e having an inlrriorly threaded portion for engagement with the threads of the ronduit, a lock nut to cooperate with the threaded portion of the conduit, and the tapered part of the nipple.

2. A conduit fitting of the kind described, comprising a. sectional hotly yrovicled with a tapered tubular nippie, and hevin a shoulder forming the inner pergion of the nipple, a threaded conduii iitiegi inihe nipple, a, bushing inserted over the threaded end of the conduit and in contacfi with the "shoulder, a lock nut to engage the threaded with a tubular tapered nipple, and

including u shoulder constituting the inner portion uf'the nipple, a conduit having a threaded end fitted in the nipple, abushing threaded onto theend of the conduit, said bushing having a rim toengage the end of the conduit and a shoulder to co-act with the shoulder of the body, a lock nut to engage-the threadeel portion of the conduit and the tapered. portion of the nipple.

In testimony whereof I have hereunto set ml hanii in the presence of two subscribing witnesses. v

KLAASSIXMAQ Witnesses: i

v Wnmnu MILLER. 

